feat(typing): improve key hit accuracy and bump to 1.6.1

Add gap-filling hit regions, release-to-commit with slide-to-reselect,
touch intent offset, and full-pinyin next-key bias; cut release 1.6.1 (build 45).

project.yml

@@ -51,8 +51,8 @@ settings:
     ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS: YES
     STRING_CATALOG_GENERATE_SYMBOLS: YES
     CLANG_CXX_LANGUAGE_STANDARD: c++17
-    MARKETING_VERSION: "1.6.0"
-    CURRENT_PROJECT_VERSION: "44"
+    MARKETING_VERSION: "1.6.1"
+    CURRENT_PROJECT_VERSION: "45"
     # 签名配置来自 Signing.local.xcconfig（gitignored，不会被覆盖）
 
 # 项目级签名 xcconfig，适用于所有 target